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प्रश्न
With reference to the photoelectric effect, define threshold wavelength
उत्तर
Maximum wavelength of incident radiation required to eject the electron from photo sensitive surface.
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संबंधित प्रश्न
When radiations of wavelength λ1 and λ2 are incident on certain photosensitive, such that E1 > E2 . Then Planck's constant 'h' is ......................... .
(C = Velocity of light).
Einstein's photoelectric equation is:
a) `E_"max" = hlambda - varphi_0`
b) `E_"max"= (hc)/lambda varphi_0`
c) `E_"max" = hv + varphi_0`
d) `E_"max" = (hv)/lambda + varphi_0`
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Einstein work on the photoelectric effect provided support for the eqn:-
The slope of frequency of incident light and stopping potential for a given surface will be
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(ii) Find the angle of incidence at face AB so that the emergent ray grazes along the face AC.
How does stopping potential in photoelectric emission vary if the frequency of incident radiation decreases?
